Improvement in mechanisms for operating sewing-machines



V. FEBVRE, F. POUGET .8: G. BONNIOT'. Mechanism for OperatingSewing-Machines.

No. 196,209. Patented Oct. 16,1877.

UNITED STATES PATENT OFFICE.

FRANCE.

IMPROVEMENT IN MECHANISMS FOR OPERATING SEWING-MACHINES.

Specification forming part of Letters Patent No. 196,209, dated October16, 1877; application filed September 19, 1877.

To all whom it may concern:

Be it known that we, Vrc'ron FnBvRn, FRANgoIs POUGET, andGERMAIN-BONNIOT, of Lyons, France, have invented Improved Mechanism forOperating Sewing-Machines;

and we do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed sheet ofdrawings, making a part of the same.

This invention relates to driving any number of sewing-machines from acommon source of power, in such manner that each machine will beindependent of the others, and may be driven at any speed desired, orgradually or suddenly started or stopped, at the will of the operator,by means of a treadle, without affecting the motion of the remainder.

The invention consists in the employment of the peculiar mechanismherein described, forming a connection between a driving-shaft common toany nimiber of machines and themain axis or shaft of each machine, fromwhich the working parts of the machine are operated. This mechanism isentirely inde pendent both of the driving-power and the machine to beoperated; and consists of stretching-pulley and brake connected rigidlytogether, and operated by simple pressure of the foot on a treadle, themechanism being caused to act upon the driving-gear of each machine,whatever may be the arrangement or position of the same.

Figure 1 of the accompanying drawing shows a perspective view of asewing-machine with the mechanism arranged outside the framing of thestand. Figs. 2 and 3 show end and fi'ont views of a sewing-machine stand.with the mechanism applied.

The same letters of reference indicate the same parts in all thefigures.

on the same axis as the band-wheel O of the sewing-machine. D is a slackdriving-belt passing round pulleys A B. E is a lever keyed on arock-shaft, i, operated by a treadle, I. F is a stretching-pulleycarried by lever E, and caused, by the movement of rockshaft 2', topress against the belt D, to more or less tighten the same on pulleys AB, in orderv to drive the machine with any desired speed. G is a lever,carrying brake g, which, by the reverse movement of the rock-shaft, isapplied to wheel 0 at the same time at which pulley F is taken olf thebelt to stop the machine, said lever being adjustably connected to leverE by a bolt, h, passing through a slot in lever E, to regulate positionof the brake with regard to that of the stretching-pulley.

We claim- 1. The combination of the rock-shaft i, hung in the frame of asewing-machine, and carrying the treadle I, with the forked lever E,which carries the stretching-pulley F, and with the arm G, having brakeg, and pivoted to the I VICTOR FEBVRE. FnAnoors POUGET. GERMAIN BONNIOT.

Witnesses PAUL BROOARD,

H. FESCHOTTE.

